Retort for the distillation of coal and other solid carbonaceous substances



May 31, 1932. c. H. PARKER RETORT FOR THE DISTILLATION OF COAL AND OTHER SOLID CARBONACEOUS SUBSTANCES Filed June 4. 1927 Inventor 6: Z. Pall/cm y 4 Z. M]

Attorney.

Patented May 3.1, 1932] UNITED STATES PATENT OFFICE CHARLES CHENEY F CODSALL, ENGLAND, ASSIGNOR TO LOW TEMPERATURE OABBONISATION LIMITED, 01 LONDON, ENGLAND V RETOR'I. FOR THE DISTILLATION 0] GOAL AND OTHER SOLID CABBONAGEOUS SUBSTANCES Application filed Jnne 4, 1927, Serial No. 196,598, and in Great Britain June 7, 1926. I

This invention relatesto the distillation of coal and other solid carbonaceous substances and is especially applicable to vertical or inclined retorts from which the vapour and gas are withdrawn near thetop of the retort, and the invention has among its objects to avoid the deposit and accumulation of pitch in the vapour outlet pipe, and in a simple way to accommodate the expansion and contraction of the vapour outlet pipe.

According to the present invention in a vertical or inclined retort the vapour outlet pipe in position between the retort and the hydraulic main is provided with a surrounding jacket through which water or other cooling medium is circulated inorder to induce a substantial amount of condensation and this part of the vapour outlet pipe is disposed at an inclination downwards towards the hydraulic main whereby a continuous flow of liquid tarry matter into the hydraulic main is ensured by which the deposit and accumulation of pitch is minimized or prevented.

According to the invention, moreover, a seal is provided in the vapour, outlet pipe'at a position above the hydraulic main. For this purpose the length-of pipe vertically disposed and passing into the hydraulic main is formed at its upper part with a surrounding annular space within which extends the downwardly protruding part of the vapor outlet pipe by which a liquid seal is provided.

By such means freedom is permitted to the vapour outlet pipe in expanding and contracting.

The invention comprises the features hereina-fter described. a v f The invention is diagrammatically illustrated in the accompanying drawing which is an elevation of avertical retort to which the invention is shown applied.

In carrying the invention into efiect in its application to a vertical retort a, a fitting 6 having a cover plate 6 is provided at the upper part of the retort a through which the coal may be charged, and the vapor outlet pipe 0 is connected laterally of this fitting,

and is disposedat a slight inclination downwards and outwards towards the hydraulic main d located in position beside the retort a.

At the side of the fitting. adjacent that at which the vapor outlet pipe 0 is connected, an internal flange or plate may extend clownwardlyas a means of preventing any part of the charge passing into the Vapor outlet pipe 0. Or instead the fitting b has integrally provided upon it an upwardly directed tubular part b as a means of preventing any part of the charge passing into the vapour outlet pipe 0.

The outer end 0 of the vapor outlet pipe is diverted to extend vertically downward,

and terminates in an open part which is adapted toenter the annularliquid sealing and said hydraulic main, the said vapor outlet pipe being downwardly inclined towards the said hydraulic main from a point immepipe in position between'said charging fitting Y diately adjacent the charging fitting, and a 7 member adapted to contain a liquid seal serving j ointedly to connect the downwardly diverted part to a separate lower vertically disposed part of the said vapor outlet pipe entering the hydraulic main, substantially as hereinbefore described.

CHARLES HENRY PARKER. 

